144137444 has 12 divisors (see below), whose sum is σ = 275171568. Its totient is φ = 65517000.

The previous prime is 144137443. The next prime is 144137467. The reversal of 144137444 is 444731441.

144137444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 144137444.

It is not an unprimeable number, because it can be changed into a prime (144137443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637882 + ... + 1637969.

It is an arithmetic number, because the mean of its divisors is an integer number (22930964).

Almost surely, 2^144137444 is an apocalyptic number.

It is an amenable number.

144137444 is a deficient number, since it is larger than the sum of its proper divisors (131034124).

144137444 is a wasteful number, since it uses less digits than its factorization.

144137444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275866 (or 3275864 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 144137444 is about 12005.7254674593. The cubic root of 144137444 is about 524.3149874709.

Adding to 144137444 its reverse (444731441), we get a palindrome (588868885).

The spelling of 144137444 in words is "one hundred forty-four million, one hundred thirty-seven thousand, four hundred forty-four".